Shao Beibei, Lu Tzu-Ching, Lu Ming-Han, Chen Yi-Ting, Wu Tai-Chen, Peng Wei-Chen, Ko Tien-Yu, Chen Jiann-Yeu, Sun Baoquan, Chen Chih-Yen, Liu Ruiyuan, Hsu Fang-Chi, Lai Ying-Chih
Soochow Institute of Energy and Material Innovations, Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Institute of Functional Nano & Soft Materials (FUNSOM) and College of Energy, Soochow University, Suzhou, 215006, P. R. China.
Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, P. R. China.
Adv Mater. 2024 Oct;36(41):e2408936. doi: 10.1002/adma.202408936. Epub 2024 Sep 2.
Escalating energy demands of self-independent on-skin/wearable electronics impose challenges on corresponding power sources to offer greater power density, permeability, and stretchability. Here, a high-efficient breathable and stretchable monolithic hybrid triboelectric-piezoelectric-electromagnetic nanogenerator-based electronic skin (TPEG-skin) is reported via sandwiching a liquid metal mesh with two-layer topological insulator-piezoelectric polymer composite nanofibers. TPEG-skin concurrently extracts biomechanical energy (from body motions) and electromagnetic radiations (from adjacent appliances), operating as epidermal power sources and whole-body self-powered sensors. Topological insulators with conductive surface states supply notably enhanced triboelectric and piezoelectric effects, endowing TPEG-skin with a 288 V output voltage (10 N, 4 Hz), ∼3 times that of state-of-the-art devices. Liquid metal meshes serve as breathable electrodes and extract ambient electromagnetic pollution (±60 V, ±1.6 µA cm). TPEG-skin implements self-powered physiological and body motion monitoring and system-level human-machine interactions. This study provides compatible energy strategies for on-skin/wearable electronics with high power density, monolithic device integration, and multifunctionality.
自主式可穿戴电子设备不断增长的能源需求，对相应的电源提出了挑战，要求其具备更高的功率密度、透气性和拉伸性。在此，通过将液态金属网夹在两层拓扑绝缘体 - 压电聚合物复合纳米纤维之间，报道了一种基于高效透气且可拉伸的单片式混合摩擦电 - 压电 - 电磁纳米发电机的电子皮肤（TPEG 皮肤）。TPEG 皮肤同时提取生物机械能（来自身体运动）和电磁辐射（来自相邻电器），作为表皮电源和全身自供电传感器运行。具有导电表面态的拓扑绝缘体显著增强了摩擦电和压电效应，赋予 TPEG 皮肤 288 V 的输出电压（10 N，4 Hz），约为现有先进设备的 3 倍。液态金属网用作透气电极，并提取环境电磁污染（±60 V，±1.6 μA/cm）。TPEG 皮肤实现了自供电生理和身体运动监测以及系统级人机交互。本研究为具有高功率密度、单片器件集成和多功能性的可穿戴电子设备提供了兼容的能源策略。
